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    NL Tuning B8 S5 4.2L V8 Stealth Cat-Back Exhaust System


    SKU: FPIM-0570 Categories: , Tags: , , , , ,


    ***Due to the consistent demand of our exhaust systems, please allow a minimum of 14 days for order processing, production, and ship time.

    Manufactured using only the highest grade T304 stainless steel materials available the full 2-1/2” system is a direct replacement for the restrictive factory system providing increases in both horsepower and torque. Hand fabricated mufflers incorporating Purge Resonance Technology (PRT) give the S5 a distinct exhaust note that is louder than the stock yet pleasing to the ear. By special order only, NL Tuning offers a touring system or a sport version that replaces the center resonator with a hand fabricated x-pipe for the owner that is looking for a louder, more aggressive note. To finish the system off, it includes a quad tip design using 3.5” round double wall tips for a look that is pleasing to any enthusiast’s eye. With the system being an after cat design it is 50 state emissions legal and is backed by NL Tuning’s limited LIFETIME WARRANTY.

    ** In listening to this sound clip, please be sure to do the following for accurate sound reproduction… The best way to listen to this audio clip, is ideally with headphones (or even “ear buds”). The low frequencies of this exhaust system audio clip, may distort or even damage some audio speakers, or computer desktop speakers. If using these types of desktop, computer, or other audio speakers, please be sure to have an appropriate volume level. We recommend low-to-moderate volume levels, otherwise you may mistake speaker distortion, for an inaccurate representation of the exhaust sound. Again, headphones or “ear buds” would be our recommendation, as we just want to provide everyone with the true representation of how nice these exhaust systems sound.

    ***This video of this exhaust clip was recorded using professional equipment to ensure an accurate representation of actually hearing this in person. The video was recorded with a Sony A99. The audio was recorded with a Zoom H4N digital audio recorder. Audio was encoded at 256k to ensure optimal listening. Please watch and listen this video in HD to hear the highest quality sound.

    Additional information

    Weight 95 lbs
    Dimensions 56 x 14 x 22 in